Thermal treatment of semi-dilute aqueous xanthan solutions yields weak gels with properties resembling hyaluronic acid.
Thermal treatment of semi-dilute aqueous xanthan solutions yields weak gels with properties resembling hyaluronic acid.
复制标题
半稀黄原胶水溶液的热处理产生具有类似于透明质酸性质的弱凝胶。
DOI：
10.1016/s0141-8130(05)80081-9
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发表时间：
1993
影响因子：
8.2
通讯作者：
Brant,DA
中科院分区：
文献类型：
--
作者：
OviattJr,HW;Brant,DA
Semi-dilute (ca 2 g/dl) aqueous xathan (mean molar mass ca 1 × 106g/mol), when heated in the presence of 0.1 M NaCl to a temperature above the orderdisorder transition temperature, forms highly viscoelastic solutions when returned to room temperature. The steady shear and dynamic rheological behaviour of these solutions discloses a weak gel structure, the viscosity of which is unusually sensitive to the rate of shear. In shear thinning behaviour these heat and salt treated xanthan solutions mimic the properties of the aqueous hyaluronic acid solutions widely used in viscosurgical techniques. The double stranded model of native xathan is invoked to interpret the observed behaviour of heat and salt treated semi-dilute aqueous xanthan.
